A heat engine has a hot reservoir of 490°C and a cold reservoir of 210°C. What is the efficiency of the engine?

A. 62.3% B. 52.6% C. 57.1% D. 48.2%

Question

A heat engine has a hot reservoir of 490°C and a cold reservoir of 210°C. What is the efficiency of the engine?

A. 62.3%  B. 52.6%  C. 57.1%  D. 48.2%

anonymous · Answer

I can give you the maximum possible efficiency of the engine.

anonymous · Answer

What is it lol :)

anonymous · Answer

Considering a carnot's cycle,
$$\eta = 1- T _{2}/T _{1} $$
where n - efficiency
           T(2)- temperature of cold reservoir
           T(1)- of hot reservoir

anonymous · Answer

If you put values, you get close to C.

anonymous · Answer

yes lol thats what i got :) thank you do you think you can help me with my physics test ?

anonymous · Answer

Yeah, I will try my best.

anonymous · Answer

okay hold up ill show you the rest of the questions